From 2238e711b5d63d88cd25fd0fef58a4175080ee19 Mon Sep 17 00:00:00 2001
From: Nghia Ho <nghiaho12@yahoo.com>
Date: Sun, 20 Oct 2013 13:00:11 +1100
Subject: [PATCH] Copied errorCovPre to errorCovPost. This allows the correct
 behaviour of the uncertainty to grow when there is missing data for each
 predict step.

---
 modules/video/src/kalman.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/video/src/kalman.cpp b/modules/video/src/kalman.cpp
index 00211e8cf..b4b4c7435 100644
--- a/modules/video/src/kalman.cpp
+++ b/modules/video/src/kalman.cpp
@@ -266,6 +266,7 @@ const Mat& KalmanFilter::predict(const Mat& control)
 
     // handle the case when there will be measurement before the next predict.
     statePre.copyTo(statePost);
+    errorCovPre.copyTo(errorCovPost);
 
     return statePre;
 }